Fix a null-reference exception bug when built-in tools are not available (#396)

daxian-dbw · web-flow · commit 2a2212fbcf4a · 2025-07-09T12:13:13.000-07:00
diff --git a/shell/AIShell.Kernel/MCP/McpManager.cs b/shell/AIShell.Kernel/MCP/McpManager.cs
@@ -81,7 +81,7 @@ internal async Task<List<AIFunction>> ListAvailableTools()
         await _initTask;
 
         List<AIFunction> tools = null;
-        if (_builtInTools.Count > 0)
+        if (_builtInTools is { Count: > 0 })
         {
             (tools ??= []).AddRange(_builtInTools.Values);
         }

Original file line number	Diff line number	Diff line change
`@@ -81,7 +81,7 @@ internal async Task<List<AIFunction>> ListAvailableTools()`
`81`	`81`	`await _initTask;`
`82`	`82`
`83`	`83`	`List<AIFunction> tools = null;`
`84`		`- if (_builtInTools.Count > 0)`
	`84`	`+ if (_builtInTools is { Count: > 0 })`
`85`	`85`	`{`
`86`	`86`	`(tools ??= []).AddRange(_builtInTools.Values);`
`87`	`87`	`}`